99401055 has 64 divisors (see below), whose sum is σ = 183859200. Its totient is φ = 45467136.

The previous prime is 99401053. The next prime is 99401063. The reversal of 99401055 is 55010499.

It is not a de Polignac number, because 99401055 - 2¹ = 99401053 is a prime.

It is a super-2 number, since 2×99401055² = 19761139470226050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99401051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 165646 + ... + 166244.

It is an arithmetic number, because the mean of its divisors is an integer number (2872800).

Almost surely, 2^99401055 is an apocalyptic number.

99401055 is a deficient number, since it is larger than the sum of its proper divisors (84458145).

99401055 is a wasteful number, since it uses less digits than its factorization.

99401055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 99401055 is about 9970.0077733169. The cubic root of 99401055 is about 463.2303415936.

The spelling of 99401055 in words is "ninety-nine million, four hundred one thousand, fifty-five".